A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6240-01-384-8802
NSN 7035-01-123-8723
NSN 6130-00-581-9322
NSN 5910-00-170-9116
NSN 5835-01-082-6395
NSN 5950-01-201-1579
NSN 6645-00-467-6094
NSN 5960-01-193-5224
NSN 6645-01-579-6304
NSN 6610-01-131-2636
NSN 7035-01-582-6442
NSN 6135-01-333-6101